title: Age 14 starts a child's increased risk of major knife or gun injury in Washington, DC.
mesh_terms: D000293:Adolescent; D017677:Age Distribution; D004219:District of Columbia / Q000453:epidemiology; D006801:Humans; D012189:Retrospective Studies; D012307:Risk Factors; D014948:Wounds, Gunshot / Q000453:epidemiology*; D014951:Wounds, Stab / Q000453:epidemiology*